As the No. 1 tourist destination in the country, many people visiting Orlando say they're keeping a close eye on the spread of the Zika virus.

"I'm a nurse, so I did my research before I came," said Alanna McGuiness, who is visiting from Wales. "We looked up our government health advice and they said pregnant women should be wary, but other than that, just normal precautions."

"I know there's a concern in Miami, but Miami seems to be pretty far away," said Don Eggis, from Indiana.

Some tourists say they've heard the virus is spreading through mosquitoes in the state, so they're worried about traveling to Central Florida.

"At times, it concerns me because you never know when you'll get bitten by a mosquito and get an illness," said Shanzay Khan, a tourist from New York.

According to Visit Orlando, a record 66 million people visited Orlando in 2015.

"As the No. 1 tourist destination in the country, safety is our top priority," officials said in a statement. "Our county has a highly effective mosquito prevention and monitoring program in place throughout the destination, and confirm that no cases of Zika have been contracted through mosquitoes in our area."

On Tuesday, Department of Health officials announced there is a new non-travel-related case of Zika virus being investigated in Florida, bringing the total to 15. Officials still believe all cases stem from a small neighborhood north of downtown Miami.